MIC94060/61/62/63
High Side Power Switches
General Description
The MIC94060-63 are high-side load switches designed
for operation between 1.7V to 5.5V. The devices contain
a low on-resistance P-channel MOSFET that supports
over 2A of continuous current. The MIC94061and
MIC94063 features an active load discharge circuit
which insures capacitive loads retain no charge when
the main switch is in an OFF state.
MIC94060-61 feature rapid turn on while MIC94062-63
provide a slew rate controlled Soft-Start turn-on of 800µs
(typical) to prevent in-rush current from glitching supply
rails.
An active pull-down on the enable input keeps
MIC94060-63 in a default OFF state until the EN pin is
pulled to a high level. Built-in level shift circuitry allows
low voltage logic signals to switch higher supply
voltages, or vice versa; high level logic signals can
control low level voltages.
MIC94060-63’s operating voltage range makes them
suitable for 1-cell Lithium ion and 2- to 3-cell
NiMH/NiCad/Alkaline powered systems, as well as all 5V
applications. Their low operating current of 2µA and low
shutdown current of <1µA maximize battery life.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
•
•
•
•
•
•
•
•
•
1.7V to 5.5V input voltage range
2A continuous operating current
77mΩ (typ) R
ON
Built-in level shift for control logic; can be operated by
1.5V logic.
Low 2µA quiescent current
Soft-Start: MIC94062-63
Micro-power shutdown <1µA
Load discharge circuit: MIC94061, MIC94063
Space saving 1.2x1.6 mm Thin MLF
®
package
Applications
•
Load switch in portable applications:
-
Cellular phones
-
PDAs
-
MP3 players
-
Digital Cameras
-
Portable instrumentation
•
Battery switch-over circuits
•
Level translator
________________________________________________________________________________________________________
Typical Application
MIC94060, 62
Load Switch Application
MIC94061, 63
Load Switch with Capacitive Load Discharge
MLF and
MicroLeadFrame
are registered trademarks of Amkor Technologies, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
408
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
February 2007
M9999-022607
Micrel, Inc.
MIC94060/61/62/63
Ordering Information
Part Number
Standard
MIC94060BC6
MIC94061BC6
MIC94062BC6
MIC94063BC6
—
—
—
—
Notes
1.
Underbar symbol on SC-70 Pb-free packages may not be to scale.
Part Marking
(1)
Standard
P54
P55
P56
P57
—
—
—
—
Pb-Free
P54
P55
P56
P57
P54
P55
P56
P57
Pb-Free
MIC94060YC6
MIC94061YC6
MIC94062YC6
MIC94063YC6
MIC94060YMT
MIC94061YMT
MIC94062YMT
MIC94063YMT
Soft-Start
Load Discharge
Package
●
●
●
●
SC-70-6
●
●
●
●
1.2mm x 1.6mm
®
Thin MLF
Pin Configuration
SC-70-6 (C6)
1.2x1.6 mm Thin MLF
®
(MT)
Pin Description
Pin Number
SC-70
1
2,5
4
3
6
MLF
1
2
3
4
--
Pin Name
V
OUT
GND
V
IN
EN
NIC
Pin Function
Drain of P-channel MOSFET.
Ground and the backside pad (MLF only) should both be connected to electrical ground.
Source of P-channel MOSFET.
Enable (Input): Active-high CMOS compatible control input for switch A. Do not leave
floating.
No Internal Connection. A signal or voltage applied to this pin will have no effect on device
operation.
February 2007
2
M9999-022607
Micrel, Inc.
MIC94060/61/62/63
Absolute Maximum Ratings
(1)
Input Voltage (V
IN
) ................................................+6V
Enable Voltage (V
EN
) ...........................................+6V
Continuous Drain Current (I
D
)
(3)
T
A
= 25°C ....................................................... ±2A
T
A
= 85°C ....................................................±1.4A
Pulsed Drain Current (I
DP
)
(4)
................................ ±6A
Continuous Diode Current (I
S
)
(4)
.....................–50mA
Storage Temperature (T
s
) ............... –55°C to +150°C
EDS Rating – HBM
(6)
.......................................... 4KV
Operating Ratings
(2)
Input Voltage (V
IN
)................................. +1.7 to +5.5V
Junction Temperature (T
A
).............. –40°C to +125°C
Package Thermal Resistance
SC-70-6 (θ
JA
)......................................... 240°C/W
1.2x1.6 MLF (θ
JA
) .................................. 172°C/W
1.2x1.6 MLF (θ
JC
)
(3)
.............................. 134°C/W
Electrical Characteristics
V
IN
= 5V; T
A
= 25°C, bold values indicate –40°C< T
A
< +85°C, unless noted.
Symbol
V
EN_TH
I
EN
I
VIN
R
DS(ON)
Parameter
Enable Threshold Voltage
Enable Input Current
OFF State Leakage Current
P-Channel Drain to Source
ON Resistance
SC-70 Package
Condition
V
IN
= 1.8V to 4.5V, I
D
= –250µA
V
IN
= 1.7V to 4.5V, I
D
= –250µA
V
IN
= V
EN
= 5.5V
V
IN
= +5.5V, V
EN
= 0V
V
IN
= +4.5V, ID = –100mA, V
EN
= 1.5V
V
IN
= +3.6V, ID = –100mA, V
EN
= 1.5V
V
IN
= +2.5V, ID = –100mA, V
EN
= 1.5V
V
IN
= +1.8V, ID = –100mA, V
EN
= 1.5V
V
IN
= +1.7V, ID = –100mA, V
EN
= 1.5V
R
DS(ON)
P-Channel Drain to Source
ON Resistance
MLF Package
V
IN
= +4.5V, ID = –100mA, V
EN
= 1.5V
V
IN
= +3.6V, ID = –100mA, V
EN
= 1.5V
V
IN
= +2.5V, ID = –100mA, V
EN
= 1.5V
V
IN
= +1.8V, ID = –100mA, V
EN
= 1.5V
V
IN
= +1.7V, ID = –100mA, V
EN
= 1.5V
R
SHUTDOWN
Turn-Off Resistance
V
IN
= +3.6V, I
TEST
= 1mA, V
EN
= 0V
MIC94061, 63
77
85
100
145
155
85
100
145
155
165
200
Min
0.5
0.4
2
Typ
Max
1.2
1.2
4
1
110
115
140
200
215
115
140
200
215
225
300
Units
V
V
µA
µA
mΩ
mΩ
mΩ
mΩ
mΩ
mΩ
mΩ
mΩ
mΩ
mΩ
Ω
Dynamic
Symbol
t
ON_DLY
Parameter
Turn-On Delay Time
Condition
V
IN
= +3.6V, ID = –100mA, V
EN
= 1.5V
MIC94060, 61
V
IN
= +3.6V, ID = –100mA, V
EN
= 1.5V
MIC94062, 63
t
ON_RISE
Turn-On Rise Time
V
IN
= +3.6V, ID = –100mA, V
EN
= 1.5V
MIC94060, 61
V
IN
= +3.6V, ID = –100mA, V
EN
= 1.5V
MIC94062, 63
500
800
1500
µs
0.5
1
5
µs
700
1200
µs
Min
Typ
0.85
Max
1.5
Units
µs
February 2007
3
M9999-022607
Micrel, Inc.
MIC94060/61/62/63
Dynamic (cont.)
t
OFF_DLY
Turn-Off Delay Time
V
IN
= +3.6V, ID = –100mA, V
EN
= 1.5V
MIC94060, 61
V
IN
= +3.6V, ID = –100mA, V
EN
= 1.5V
MIC94062, 63
t
OFF_FALL
Turn-Off Fall Time
V
IN
= +3.6V, ID = –100mA, V
EN
= 1.5V
MIC94060, 61
V
IN
= +3.6V, ID = –100mA, V
EN
= 1.5V
MIC94062, 63
Notes:
1.
2.
3.
4.
5.
6.
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
With backside thermal contact to PCB.
Pulse width <300µs with < 2% duty cycle.
Continuous body diode current conduction (reverse conduction, i.e. V
OUT
to V
IN
) is not recommended.
Devices are ESD sensitive. Handling precautions recommended. HBM (Human body model), 1.5k in series with 100pF.
100
60
60
60
200
200
100
100
ns
ns
ns
ns
February 2007
4
M9999-022607
嵌入式系统
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